Lock.



No. 633,6l4. Patented Sept. 26, I899. D. DI BBAZZA SAVORGNAN.

LOCK. (Application filed Kay 8, 1898. Renewed Feb. 28, 1899,. {No Model.) 3 Sheets-Sheet 2,

FIGA; 7d M f If Tiff 1 r";

' l \\\\\\\|\\\|Y I Iy/A/ 6 7 A TTOHNE rs.

m: Noam: virus so. pumo-umo..msnmmuwn. c.

No. 633,614. Patented Sept. 26, I899. D. DI BBAZZA SAVOBGNAN.

LOCK.

(Application filed Kay 3, 1898. Renewed Feb. 28. 1899.)

3 Sheets-Sheet 3,

No Model.)

FIGJ.

FIG.9.

/N VENTOI? mu. F. s S M W W A TTOHNEYS.

rm: NORRIS mans co, PNOYO-L\THO., WASHINGTON. a. c.

Erica.

PATENT DETALMO DI BRAZZA SAVORGNAN, OF HOME, ITALY, ASSIGNOR TO THE DI BRAZZA POSTAL DEVICE AND LOCK COMPANY, OF NEXV roan, N. Y.

LOCK.

SPECIFICATION forming part of Letters Patent No. 633,614=, dated September 26, 1899.

Application filed May 3,1898. Renewed February 28, 1399. Serial No. 707,227. (No model.)

To all 1072,0771, it ntcoy concern.-

Be it known that I, DETALMO D1 BRAZZA SAVORGNAN, of Rome, Italy, have invented new and useful Improvements in Locks, of which the following is a full, clear, and exact description.

This invention relates to improvements in locks more particularly designed for use in connection with mail collecting bags and mail-boxes; and the object is to provide a comparatively simple lock for this purpose in which a multiplicity of cylinders are employed, the cylinders being provided with variously-pitched channels, so that there will be a variation of speed of movement between coacting cylinders, thus making it practically impossible to operate the lock with any other than the proper key.

I will describe a lock embodying my invention and then point out the novel features of construction in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a partial plan and partial horizontal section of a lock embodying my invention. Fig. 2 is a section on the line 2 2 of Fig. (5. Fig. 3 is a partial elevation and partial section on the line 3 3 of Fig. 2. Fig. 4 is a partial plan and partial horizontal section. Fig. 5 is a section on the line 5 5 of Fig. 6. Fig. 6 is a section on the line 6 6 of Fig. 1. Fig. 7 is a sectional elevation of alock of modi fled construction. Fig. Sis a similar view, but showing certain parts in anotherposition; and Fig. 9 is a section on the line 9 9 of Fig. '7.

Referring to the example of my improvement shown in Figs. 1 to 6, inclusive, 1 designates a casing designed to be attached to a four of these cylinders, it is to be understood that a greater or less number may be em- The cylinders have hearings in the ploycd.

opposite walls of the casing, and the first cylinder 41 has an outwardly-extended trunnion 8, to which a crank or similar turning device 9 is attached. The cylinders land 5 are designed to cooperate, and the cylinders 6 and 7 are also designed to cooperate. On one end of the cylinder 5 is a gear-wheel l0, meshing with a gear-wheel 11 at the end of the cylinder 6. Therefore it will be seen that the cylinder 6 will be rotated through the medium of the cylinder 5. The cylinder at is provided with a channel 12, which at some portions extends spirally about the cylinder, and at another portion or portions, such as at- 13, it extends circumferentially of the cylinder. The cylinder 5 is also provided with a channel 14:, which is spirally arranged throughout some portions of its length, and at one portion of its length, as at 15, it extends circumferentially of the cylinder, and this channel 14 at the forward end of the cylinder is extended longitudinally of said cylinder, as at 16. The cylinders 6 and 7 are respectively provided with channels 17 18, which have a trend somewhat similar to the channels before mentioned; but it is to be understood that the spiral pitch of the channels will vary in the cylinders-that is, the channel of the cylinder 5 may have a greater pitch at certain points than the channel in the cylinder 4. Therefore at times the cylinder 5 will move faster than the cylinder 4.

Between the cylinders 4 and 5 is a block 19, movable on guide-rods 2O 21, extended transversely of the casing l or parallel with the cylinders. This block 19 has a pin 22, which extends into the channel 12, and onits oppo- 'site side it has a pin 23, which extends into the channel 14. Between the cylinders 6 and 7 is a block 24, movable on guide-rods 25 26 and having apin 27, extended into the channel 17, and a pin 28, extended into the channel 1S.

Mounted to rotate in the casing 3 is a series of tumbler-cylinders 29, 30, 31, and 32. The cylinder 29 is provided with a channel 33, the cylinder 30 with a channel 34, the cylinder 31 with a channel 35, and the cylinder 32 with a channel 36. These several channels, like those first described with reference to the two sections or casings are placed together.

The trunnion of the cylinder 29, which projects through the front Wall of the casing 3, has a central opening 38, designed to receive a projection 39 on the inner end of the cylinder 4, and on this projection 39 is a lug 40, designed to engage against the walls of a notch 41, which is an offset from the central opening 38. By these connections it is obvious that when the sections of the lock are placed together the cylinder 29 will rotate with the cylinder 4, the cylinder 30 with the cylinder 5, the cylinder 31 with the cylinder 6, and the cylinder 32 with the cylinder 7.

Arranged between the cylinders 29 and 30 is a block 42, mounted to slide on guide-rods 43 44 and having a pin 45 at one side engaging in the channel 33 and a pin 46 at the other side engaging the channel 34. A similar block 47 is placed between the cylinders 31 and 32 andis movable on guide-rods 48 and 49. From one side of this block 47 a pin 50 extends into the channel 35, and from the other side of the block a pin 51 extends into the channel 36.

When the several cylinders are in operation, the blocks 19 and 24 will be moved toward the rear of the casing l, and the blocks 42 and 47 will be moved toward the front of the casing The normal position of these blocks is indicated in Fig. 1.

The rear wall 52 of the casing 3 may be a portion of the front wall of a mail -deposit box, and at 53 I have indicated a portion of a downwardly-swinging closure at the bottom of said box. This closure 53 will have a hinge connection at its rear edge with the box, but it is not deemed necessary to show it herein. Pivoted to the front edge of this closure 53 is a depending plate 54, the main portion of which when the part 53 is in its closing position will rest against the inner side of the wall 52. Its lower edge is curved forward, however, as at 55, to engage underneath the casing 3. At each end of this swinging plate, at its upper edge, is a forwardly and upwardly inclined lug 56, one of which isdesigned to be engaged by a locking-plate 57 and the other is designed to be engaged by a locking-plate 58. These locking-plates are mounted to swing in the casing 3, and each has a rearward extension or tooth 59, which projects through a slot in the wall 52 and is adapted to be engaged by the lug 56.

Mounted to swing in the casing 3, near each plate 57 or 58, is an angle-lever having a horizontally-disposed member 60 and a vertically-disposed member 61, which has a hook portion 62, adapted to engage over a ing 63 on the swinging plate 54, near thelug 56. Below the angle-leverscomprising the members 60 and 61 are angle-levers each comprising a horizontally-disposed member 64 and a vertically-disposed member 65, which is movable through a slot formed in the the wall 52, for a purpose to be hereinafter described.

Movable vertically in the casing 3 and extended transversely of the several cylinders above their rear ends is a tumbler-bar 66, having downwardly extended fingers 67, each adapted to engage in a notch 68, formed at the end of the cylinders, when said notches come directly under the fingers, as Will be hereinafter described. Extended downward from the end of the bar 66 are arms 69 and 70, and

extended outward at right angles from the depending arm 69 is a block 71, adapted to engage at a certain time against the forward edge of the swinging plate '57 to hold said plate from swinging, and a similar block 72 is extended from the depending arm and is designed to perform a similar service for the swinging plate 58. From the arms 69 and 7 0 pins 73 extend outward and engage between the horizontally-disposed members of the angle-levers above described.

The inner jaw 74 of the mail-collecting bag is designed to be locked in engagement with the swinging plate 54, so that the closure 53 and the jaw may be both opened together to allow the mail to fall from the mail-deposit box into the collectingbag. ,I have here shown the jaw 74 as provided near its upper edge with a concave portion 75, designed to engage against the rounded lower portion 55 of the swinging plate. This jaw 74, however, has rounded lugs 76, designed to pass into openings 77,formed in the rounded portion 55, and in these lugs 7 6 are longitudinally-movable bolts 7 8, designed to be moved into holes 79, formed longitudinally in the rounded portion 55.

The blocks 19 and 24 are designed to operate the bolts 78. The block 19 has a pin extended through a slot in the bottom of the casing 1, and this pin 80 engagesin a slot 81, formed in one end of an angle-lever 82, pivoted to the under side of the casing. The other end of this angle-lever 82 is extended into an annular groove 83, formed in its bolt 78. A similar pin 84 extends from the lower end of the block 24 through a slot-opening in the bottom of the casing 1 and into a slot 85, formed in one end of an angle-lever 86, pivoted to the bottom of the casing and having its other end extended into an annular channel or groove 87 in the other bolt 78. The slots in the levers 81 and 86 at the forward end have offset-s 88, into which the pins 80 and 84 may move when the levers are in position, holding the bolts 78 out of their keepers or the openings 79. When, however, these blocks are moved rearward by the operation of the cylinders, the pins will rock the levers slightly while moving out of the offset portions of the slots and move the ends of said pins into theirkeepers, and when these blocks are in their extreme rearward position the pins by engaging with the end walls of the slots will rock the levers to move the bolts farther into their keepers. At this timeit is designed that the jaw 74 and the closure 53 shall be moved to their open positions. When so moving outward, the bolts 78 will be moved out of engagement with the ends of their operating-levers. \Vhen the closure 53 and the jaw 74 are again moved to their closed position, however, the said bolts 78 will come into engagement with the levers, and then as the cylinders are rotated to move the blocks 19 and 24 to their outer or normal positions the pins carried by the blocks and engaging against the walls of the slots, and also by moving into the offsets of the slots, will move the bolts out of the keepers, so that the bag may be separated from the depositing-box, as will be hereinafter described.

In operation, when the cylinders 29 to 32, inclusive, are turned to a position to bring the notches 68 in line with the fingers 67 the bar 66 will fall and move the blocks 71 72 out of line with the swinging plates 57 and 58. This movement of the bar 66, carrying the pins 73,. will allow the angle-levers consisting of the members 60 and 61 to fall and release the member 61 from the lugs 63. Then by moving the bag-jaw 74 downward the swinging plate 54 and the closure 53 will also be moved downward, and at this time the member 65 0f the lower angle-levers will move outward through the slots in the wall 52. \Vhen the bag is closed, or, in other words, when the jaw 74 is moved to its closing position and also closing the part 53, the plate 54, by engaging with the member 65 of the lower angle-levers, will swing said angle-levers, which engage with the pins 73, upward, thus moving the bar 66 to its normal position to bring the fingers 67 out of engagement with the cylinders. Before this movement the lugs 56 will engage with the projections or teeth 59 and swing the plates 57 and 58 to theirnormal position.

Above the cylinders 4 5 6 7 is a tumbler-bar 89, having fingers 90, adapted to engage in notches 91, formed in the cylinder 4. At the ends of this bar 89 are arms 92, which extend downward through an opening in the bottom of the casing 1 and connect with locking-levers 93, pivot-ed at their ends to the bottom of the casing 1. The opposite ends of these levers 93 are provided with fingers 94 95, between which a finger 96 on the jaw 74 is designed to engage. These levers 93 are'designed to hold the jaw 74 in locked engagement with the jaw 2 when the bag is transported from place to place. When the cylinders are in position to allow the bar 89 to drop, the levers 93 will fall out of engagement with the jaw 74, so that said jaw may be opened; but upon closing said bag its finger 96 will move between the fingers 94 95 and move the levers 93 upward or to their locking position, and consequently move the bar 8.9,with its fingers,out of engagement with the cylinders.

In the example of my improvement shown in Figs. 7, 8, and 9, 97 indicates a casing within which is arranged a tubular cylinder 98, and within this tubular cylinder 98 is a tubular cylinder 99, and within the tubular cylinder 99 is a shaft 100. These cylinders and shaft are operated substantially as described in connection with the first example of my invention.

Within a casing 101, to which the casing 97 is designed to be attached, is a tumblercylinder 102, and within this cylinder 102 is a cylinder 103, within which is a shaft 104. When the casings 97 and 101 are in engagement, the cylinder 98 will be placed in engagement with the cylinder 101 by means of a lug or lugs 105, extended from one cylinder into the other. Therefore the rotary movement of these cylinders will be in unison. The shaft 100 has an angular projection 106, adapted to engage in a corresponding recess in the end of the shaft 104, so that said shafts may be rotated in unison. Extended longitudinally through the shaft 101 is a push-rod 107, designed to engage with a push-rod 108, extended longitudinally through the shaft 104. Extended outward from the push-rod 107 and through a slot formed in the shaft 100 is a lug 10S, normally engaging in a horizontally-disposed groove 109, formed in the cylinder 99, and which communicates at its inner end with the spirally-disposed channel 110, formed in said cylinder, and at its opposite end this channel has communication with a horizontally-disposed channel, as plainly illustrated in dotted lines in Fig. 7. The pushrod 108 has a lug 111, normally engaging in a longitudinal channel 112, formed in the cylinder 103, and which communicates with a spirally-disposed channel 113, formed in said cylinder. On the outer side of the cylinder 99 is a lug 114, engaging in a spirally-disposed channel 115, formed in the inner side of the cylinder 98, and the cylinder 103 is provided with a simiiar lug 116, engaging in a spirally-disposed channel 117 in the inner side of the cylinder 102. The channels 110 and 113 have a different pitch from the channels 115 and 117.

The cylinders 99 and 103 are designed to have both a rotary and a longitudinal movement. The cylinders 98 and 102 and the shafts 100 and 104, however, are to have a rotary movement only. The inner end of the cylinder 102 has a notch 118. The cylinder 103 has a notch 119, and the shaft 104 has a notch 120.

Pivoted within the casing 1.01 is a keeper 121, the end of which is designed to drop into XIO the notch 118 when said notch is in a proper position, and this keeper has also fingers 122 and 123, designed to engage, respectively, in the notches 119 and 120 when the said notches are in the proper position. This keeper has a catch or hook 12 1, designed to engage with a hasp 125, designed to be extended through an opening in the casing 101, and this hook 121 is held in engagement with the hasp by means of a spring 126. The outer end of the rod 107 is connected to a plate 127, pivoted between cheek-pieces 128 on the end of the casing 97, and to this plate is attached a handle 129.

In operation, when the two casings are placed in connection the handle 129 is to be swung upward to the position indicated in dotted lines in Fig. 7. This will push the prO- jection 10S and the projection 111 to the en trance of the inclined channels. Then by rotating the shafts 100 and 101 by turning the handle 129 the projection 108, traveling through the channel 110, will transmit a slight rotary movement to the cylinder 99 and also a longitudinal movement thereto, and this same operation will take place with the cylinder 103. The projection 114 in moving in the channel 115 will imparta rotary motion to the cylinder 98, and the projection 116, moving in the channel 117, will impart a rotary motion to the cylinder 102. After the projections 10S and 111 shall have reached the end of their inclined channels the notches 118, 119, and 120 will be in position to receive the portions of the keeper 121. Then by swinging the handle 129 to the position indicated in Fig. 8 the rods 107 and 108 will be moved longitudinally against the downward projection of the plate 121 and rock said plate out of engagement with the hasp 125.

The parts contained within the casing 97 may be considered as a key for the parts contained in the casing 1, and in the first example of my improvement the parts contained in the casing 1 may also be considered as a key for the parts contained in the casing 3.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent 1. A look, comprising a plurality of cylinders, each provided with a channel having portions spirally disposed, a key having a plurality of cylinders provided with channels spirally disposed in part, means for rotating one cylinder by the rotation of another cylinder, and a locking-latch governed by certain of the cylinders, substantially as speciiied.

2. A look, comprising a casing, a plurality of tumbler-cylinders mounted to rotate therein, each cylinder having a channel disposed spirally in part, ablock movable between adjacent cylinders and having pins projecting into the channel, a key comprising a casing, tumbler-cylinders mounted to rotate in said casing, the said cylinders each being provided with a channel spirally disposed in part, a block movable between said cylinders and having pins projecting into the channels, a locking-latch governed by the cylinders in the lock, and a projection on a cylinder in the key-casing adapted to engage with a cylinder in the lock-casing, substantially as specified.

3. A look, comprising a plurality of rotary tumbler-cylinders,each provided with a channel, the said channel being spirally disposed in part, the spiral portion of the channel of one cylinder being of a difierent pitch than the spiral portion of the channel in the other cylinder, a block movable on a guide between adjacent cylinders, pins extended from said block into the channels, locking bolts or latches governed by said cylinders, and means for imparting rotary motion to the cylinders, substantially as specified.

4:. A look, comprising a casing, a series of cylindrical tumblers mounted to rotate therein, each of said cylinders being provided with a spirally-disposed channel, a block movable between adjacent cylinders, pins on said block extending into the channel, a tumblerbar for controlling a locking mechanism and having fingers adapted to move into notches formed in the cylinders, a key-casing adapted for engagement with the lock-casing,tumblercylinders in said key-casing, each provided with a spiral channel, a block movable between said cylinders, pins extended from said block into the channels, a locking-lever operated by said block, and means for rotating one of the cylinders in the key-casing and through it rotating the other cylinders, substantially as specified.

5. A look, comprising a casing, a plurality of tumbler-cylinders mounted to rotate therein, each of said cylinders having a spirallydisposed channel, a block movable between said cylinders, pins extended from said block into thevchannels, atumbler-bar arranged in the casing, fingers on said tumbler-bar adapted to move into notches in the cylinders, locking devices controlled by said bar, a key comprising a casing, tumbler-cylinders mounted to rotate therein, each of said cylinders having a spirally-disposed channel, a block movable between said cylinders, pins on said block projecting into the channel, a bolt-lever operated by said block, and means for rotating one of the cylinders and through it causing a rotary motion of the other cylinders, substantially as specified.

6. A lock, and a key therefor, each consist-' I ing of a plurality of spirally-channeled rotary cylinders, the cylinders of the key being adapted for engagement with the cylinders of the lock, and means for imparting rotary motion to said cylinders at diflerent speeds, one relatively to the other, substantially as specified.

7. A look, comprising a casing, cylindrical until the plate is returned to its locking positumblers therein, means for causing the tumtion, substantially as specified. blers to rotate at ditferent rates of speed, one H I v T T relatively to another, a locking-plate, and DMALMO DI BRMZA ORGML 5 means controlled by the tumblers for holding \Vitnesses:

and releasing said plate, the said means also JNO. M. BITTER, serving to hold the tumblers from rotation C. R. FERGUSON. 

